W638/3-2Z SKF 3x7x3mm ra max. 0.1 mm Deep groove ball bearings


Bearing number | W638/3-2Z |
Size (mm) | 3x7x3 |
Brand | SKF |
Bore Diameter (mm) | 3 |
Outer Diameter (mm) | 7 |
Width (mm) | 3 |
d | 3 mm |
D | 7 mm |
B | 3 mm |
C | 3 mm |
d1 | – mm |
d2 | 3.8 mm |
r1 min. | 3.7 mm |
r2 min. | 3.7 mm |
D1 | 6.4 mm |
D2 | 0.1 mm |
da min. | 3.8 mm |
Da max. | 6.5 mm |
ra max. | 0.1 mm |
Weight | 0.0005 Kg |
Basic dynamic load rating (C) | 0.178 kN |
Basic static load rating (C0) | 0.057 kN |
Fatigue load limit (Pu) | 0.002 |
Reference speed | 160000 r/min |
Limiting speed | 80000 r/min |
Calculation factor (f0) | 7.1 |
Detailed Parameters
parameter:
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